Mitsubishi Electric MELSEC iQ-R Series User Manual page 277

Symptom
SECS communication via HSMS is
not possible between SECS/GEM
communication software and host
Check item
Is the SECS/GEM communication
software started?
Is the line disconnection relay OFF?
Communication settings with the
correspondence destination are
incorrect.
Is the communication port of the
correspondence destination opened?
Corrective action
Refer to "The SECS/GEM communication software transferred to the SECS/
GEM communication software pre-installed model module does not start" in
"Troubleshooting", and then check that the SECS/GEM communication
software has started.
After starting, SECS/GEM communication software attempts to connect with
the correspondence destination automatically.
If the HSMS communication state is SELECTED, the line disconnection relay
is switched OFF, so check whether this relay is OFF.
For the settings of the line disconnection relay, refer to the following:
Page 99 CA status
When SECS/GEM communication software is running, and the line
disconnection relay is ON, the communication setting content may be
incorrect.
Check whether the following items have matching settings at the equipment
and host.
(Example: Is the connection mode set to Active on one side and Passive on
the other?)
• Connection mode: Active/Passive
• IP address: Local/Remote
• IP port: Local/Remote
Using the netstat command, check whether the port of the correspondence
destination is open.
10.1 Troubleshooting by Symptom
10 TROUBLESHOOTING
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